BUILDING STATISTICS | PART 2

User Note: While great efforts have been taken to provide accurate and complete information on the pages of CPEP, please be aware that the information contained herewith is considered a work-in-progress for this thesis project. Modifications and changes related to the original building designs and construction methodologies for this senior thesis project are solely the interpretation of Madison Smith. Changes and discrepancies in no way imply that the original design contained errors or was flawed. Differing assumptions, code references, requirements, and methodologies have been incorporated into this thesis project; therefore, investigation results may vary from the original design.

PRIMARY ENGINEERING SYSTEMS

CONSTRUCTION

Global Vascular Institute (GVI) is located at 100 High Street in Buffalo, NY. It is located at the medical center of the city. The site for GVI is located next to an existing and fully operational hospital, Buffalo General Hospital. Part of the GVI project is to actually create a 4 story link between these two buildings. The project will also include two additions to an existing central plant that currently supplies power to Buffalo General Hospital. The central plant is located directly to the east of GVI.

All three of these facilities will be constructed in the same time frame. The construction of each trade will begin with the core building of GVI, continue to the link and then finish with the central plant additions.

The main issue of the construction of the GVI project is that Buffalo General Hospital must remain open and be functional at all times. Another major issue of this project is that the central plant must continue to power Buffalo General Hospital throughout the construction. This issue will be the greatest during the addition work to the central plant.

GVI is not pursuing a LEED Certification but Turner Construction will be applying numerous sustainable features into the systems of the facility. The major contributing feature is a green roof located on the 2nd floor patio and the healing garden.

ELECTRICAL

NGrid supplies the electrical service for Global Vascular Institute. A new substation will be constructed at the central plant. It will consist of four 5000/6650 kVA AA/FA oil-filler power transformers and two double-ended switchgear assemblies rated 5kV, 1200A, 350 MVA fault rating.

For the GVI building, two double-ended 480Y/277 V unit substations will be constructed. One will be located in the main electrical room on level B and the other will be in the penthouse electrical room. Each unit substation will be 480V, 3 phase, 4 wire, plus ground. This will then be further transformed down to 208Y/120 V, 3 phase, 4 wire, plus ground. This lower voltage will mostly be used for receptacles and miscellaneous equipment.

Three new 2,000kW, 480V stand-by rated diesel generators will be installed in addition to the existing (1) 765kW Detroit Diesel, (2) 750kW Onan diesel, and (1) 500kW Caterpillar diesel generators.

LIGHTING

INTERIOR LIGHTING

The main type of lighting utilized for the interior of GVI will be fluorescent lighting with energy efficient lamp and ballast combinations and low brightness diffusers. For specialized areas, special high color rendering lamps and diffusers. Tungsten halogen and/or neon lighting systems will be used where dimming is required to supplement the lighting system for signage and graphics. LED light sources will be used for EXIT signs. For the areas of delicate electronic equipment operation, either incandescent lamps or fluorescent lamps with special filters and housings will be used so that electromagnetic/radio frequency will not interfere with the equipment.

To contribute to energy conservation efforts, GVI will incorporate the following lighting features into its interior lighting; high efficiency luminaries and diffusers, energy saving, high power factor, solid-state electronic ballasts, incandescent fixtures dimmers, task illumination, automatic lighting controls, and multiple switching arrangements.

EXTERIOR LIGHTING

Exterior Lighting will be used for the canopies, entrances, and exits. The exterior lighting will be separated into zones and will be controlled by means of a contractor panels with time clock and/or photocell controls.

To contribute to energy conservation efforts, GVI will incorporate the following lighting features into its exterior lighting; cutoff luminaries to reduce light pollution, contain light within design lighted areas, minimal upward illumination, use local project area manufacturers, high efficiency luminaries, automatic lighting controls, and day lighting methods.

Perimeter lighting will be provided around the building and in the parking lots to deter vandalism.

Aviation lighting will be required on the roof of GVI due to the helipad on the Buffalo General Hospital.

MECHANICAL

There are two mechanical rooms located in the core GVI building. They are located from the basement level to the 2nd level, as well as from the 8th level to the roof. The mechanical system type used is Variable Air Volume (VAV) and single zone. These systems will be supplied by air-handling units located in the basement and in the Penthouse mechanical room.

The central plant will house the required 3 chillers and 2 cooling towers for GVI. Two of the existing chillers will be replaced with two nominal 2400 ton dual compressor centrifugal chiller systems and two of the existing cooling towers will be replaced with two nominal 7200gpm cooling towers. To distribute chilled water to GVI, a new 10’x10’ concrete tunnel will be constructed from the central plant to GVI. The tunnel will connect to GVI at the Basement Level Mechanical room. A 16” chilled water supply pipe will run through this tunnel to supply GVI with chilled water with a 24” return pipe to the central plant. The central plant will supply high pressure steam to GVI as well. No new boilers will new to be added or replaced. The two existing boilers discharge 85psi steam and are 60,000lb/h and 30,000lb/h. The tunnel will also house the 18” high pressure steam main to GVI. At the basement mechanical room, the main will split into a 12” main to supply Buffalo General Hospital and an 8” main to supply GVI.

STRUCTURAL

The Global Vascular Institute is a steel framed structure with 9 stories above grade and 1 floor set partially below grade. (Below grade on the South end and at grade on the North side.)

SLAB-ON-GRADE

The slab-on-grade for all areas consists of 5” thick concrete reinforced with blended steel/polypropylene fibers with a minimum dosage rate of 24lb per cubic yard of concrete. Between pours, all construction joints require shear reinforcing across the joint. The slob-on-grade is places over a compacted subgrade, a compacted drainage base course, and a vapor barrier.

COMPOSITE STEEL FLOOR CONSTRUCTION

The typical floor construction consists of a steel/concrete deck composite floor framing system. The slab is a 4 ½” normal weight concrete (NWC) on 3” deep, 18 Gage composite steel deck for multi-span conditions and with a 16 Gage deck for single span conditions. The deck is galvanized to G60 requirements. The slab is reinforced with blended steel and synthetic fibers. The floor slabs are supported on rolled wide flange steel beams, girders, and columns. The beams and girders are designed to act compositely with the slab through ¾” diameter headed shear studs welded through the steel deck to the top of the framing members.

ROOF CONSTRUCTION

The roof construction consists of 1 ½” deep 18 Gage type B steel roof deck supported on typical beam, girder, and column construction. The roof deck is galvanized to G90 requirements. The roof construction for the green roof areas is similar to the floor framing construction, except the slab is 2 ½” of (NWC) over 2” deep, 20 gage G60 composite steel deck.

VIBRATION REQUIREMENTS

There are 3 vibration criteria for the elevated floor structure design.

Typical Lab and Surgery area – Criterion D

Lab areas adjacent to corridors – Criterion E

Vibration sensitive Central Lab areas – Criterion F

LATERAL SYSTEM

Ordinary steel moment frames are used to resist lateral loads due to wind and/or seismic forces. The moment frames are located around the perimeter of the building. The typical bay spacing columns around the building perimeter is 31’-6” on the center.

FOUNDATION SYSTEM

The building is supported on steel H piles driven to refusal on limestone bedrock at a depth of 82’ to 98’ below the existing ground surface. The pile size is HP 12x74. A typical interior column has 6 piles per column and a typical exterior column has 5 piles per column. There are 48” to 52” deep pile caps braced by 4’ deep grade beams spanning between pile caps. The perimeter grades support the exterior wall. Interior masonry walls are supported on a thickened slab-on-grade. Engineered fill materials are used to reach the required slab subgrade elevation after all topsoil and unsuitable materials are removed.

 ENGINEERING SUPPORT SYSTEMS

FIRE PROTECTION

A zoned sprinkler system by floor will be used. There will be a floor control valve with tamper switch and flow switch for each riser and for each zone.  The entire building will consist of a wet standpipe and sprinkler system. The velocity for the system is to not exceed 20 FPS. The standpipes is the exit stairwells will be 2 ½”. Sprinklers will be provided throughout the building including the electric room and elevators. The sprinklers for the mechanical rooms, storage rooms and laboratories will be designed to meet ordinary hazard group 1 requirements designed by NFPA 13.

CONVEYING

Due to the occupancy of the core GVI building, numerous elevators will be provided in the facility. There will be a total of 13 elevators in the building. This will include 4 public elevators, 6 staff elevators, 3 service elevators. There will be no new elevators added to the central plant.

TELECOMMUNICATION

The telecommunications system for Global Vascular Institute is incorporated into a universal structured cabling system that consists of voice, data, and video and distributed over backbone and horizontal distribution systems. The system is designed for utilization of future technologies as they develop. The telecommunications service entrance room is located on the basement level. Telecommunication rooms will be located throughout the building based on room layout and design requirements. The backbone cabling distribution system consists of telecommunications room connectivity. It will provide service for voice, data, and digital video systems. The system will consist of single-mode fiber optic cabling, multimode 50/125 µm fiber optic cabling, multi-pair UTP copper cabling, and supplemental UTP backbone cabling. The horizontal cabling distribution system consists of telecommunication room and the work area outlet systems. A Wireless Local Area Network System will also be provided throughout the facility.

MEDICAL

Since the Global Vascular Institute is a state-of-the-art medical facility, very specific medical systems are required for the building. These include a Public Address system, a Code Blue Emergency Notification system, and a Medical Gas Piping system.

Public Address System

A Public Address (PA) system will be set up throughout the building with speakers located in corridors, conference rooms, and the lobby.

Code Blue Emergency Notification System

A code blue emergency notification system will be installed to provide audible and visual alarms within specific departments throughout the building.

Medical Gas Piping System

Medical Gas piping systems will be required for Oxygen, Medical Compressed Air, Nitrous Oxide, Nitrogen, and Carbon Dioxide. The wall stations for gas piping outlets will have 5” centerline spacing between each outlet. Each outlet valve will be a quick-connect/disconnect type with geometric shape indexing to prevent interchangeability between services. The wall stations will be constructed throughout the building at the following locations: patient rooms, examination/treatment rooms, isolation rooms, security medical rooms, critical (coronary and pediatric) care rooms, psychiatric patient rooms, seclusion treatment rooms, general operating rooms, cardio/neurological rooms, orthopedic surgery rooms, anesthesia workrooms, triage areas and emergency/trauma rooms.

 

GLOBAL VASCULAR INSTITUTE

BUFFALO, NY

 

MADISON SMITH
CONSTRUCTION MANAGEMENT